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* Embedded sequence element expression in string template
@ 2014-09-15 12:34 Ito Kazumitsu
  2014-09-16  1:31 ` Per Bothner
  0 siblings, 1 reply; 2+ messages in thread
From: Ito Kazumitsu @ 2014-09-15 12:34 UTC (permalink / raw)
  To: kawa

Is this correct?

#|kawa:1|# (scheme-implementation-version)
1.14.1 (revision 8024)
#|kawa:2|# (define a '#("A" "B" "C"))
#|kawa:3|# &{&[(vector-ref a 1)]}
B
#|kawa:4|# &{&[(a 1)]}
1
#|kawa:5|# 

I expect &{&[(a 1)]} to be "B".

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: Embedded sequence element expression in string template
  2014-09-15 12:34 Embedded sequence element expression in string template Ito Kazumitsu
@ 2014-09-16  1:31 ` Per Bothner
  0 siblings, 0 replies; 2+ messages in thread
From: Per Bothner @ 2014-09-16  1:31 UTC (permalink / raw)
  To: Ito Kazumitsu, kawa

On 09/15/2014 05:34 AM, Ito Kazumitsu wrote:
> #|kawa:2|# (define a '#("A" "B" "C"))
> #|kawa:3|# &{&[(vector-ref a 1)]}
> B
> #|kawa:4|# &{&[(a 1)]}
> 1
> #|kawa:5|#
>
> I expect &{&[(a 1)]} to be "B".

As would I.  This turned out to a missing $splice$ in the literals
part of a syntax-rules rule implementing the $string$ expander.
Thus the pattern for handling splices matched, when it shouldn't have.

I checked in the fix, along with a simple test-case.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2014-09-15 12:34 Embedded sequence element expression in string template Ito Kazumitsu
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